I just picked up a really nice 1971, HK4 in 380.
Opened it up, the old buffer, fell out in pieces.
I ordered 2 of the red buffers, from the guy here, on HKPRO.
It also came with a 22LR kit, this is non matching number, to the pistol, but is new in box, with everything.
I read how the 380 is rough on this gun, aluminum frame and all.
So, my questions are:
Do I shoot it in 380?
Or, put in the 22LR kit?
Or, look for a .32 kit?
To swap to .32, is that just the barrel and magazine?
This is more of a Collector pistol, but would like to shoot it, once in a while.
Last edited by m62-m76; 07-07-2019 at
I would not shoot this pistol in .380, shoot .32 or .22 only. The frame has been known to crack when shooting .380. The HK4 is more of a collector item now, parts are hard to find and expensive when you do locate them. Of course, if the frame cracks, you are left with a display only item.
I've been here for 11 years.
Have several HK's, of course.
But, they never break or need anything, of course.
Thinking of looking for a .32 kit, or just the .32 barrel, for starters.
Are these difficult to obtain?
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